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<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <script>
      const arr = [1, 2, 3, 4, 5, 6];
      // const r = arr.map((v, i) => {
      //   return v + "个";
      // });
      const r = arr.map((v) => v + "个");
      console.log(arr);
      console.log(r);
    </script>
  </body>
</html>
